Wheel.



S. OLSZEWSKE.

WHEEL.

AiPLlCATlON FILED JUNE 14. um.

Patented Nov. 5, 1918.

Z SHEETSSHEET I.

I SM 57m ULsEEM/S/H.

S. OLSZEWSKB.

WHEEL.

APPLICATION FILED JUNE 14. 19:1.

Patented Nov. 5, 1918.

2 SHEETS-SHEET 2.

moewboz i he i "To all whom itmaj/ concern;

Be it known 'hat'l, SrLvns'rnn Unsznwsm,

a citizen of the United Fitates, residing at Detroit, county of Wayne, State of Mlchli gan, have invented. a certain new and useful improvement in Wheels, and declare the following to bea full; cleargand exact de- "scription of the same, such as will enable others skilled inthe art to which it pertains to make and use the same, reference be ng hadto the accompanying drawings, WlllCll I form apart of this specification.

lldy invention relates to attachment for automobile driving wheels and an object of my improvements is to provide a'device that may be conveniently adjusted to and removed from an automobile driving wheel to increase the friction thereof against the road. 7 a

ll secure-this object 1n the dev1ce 1llus-' trated in the accompanying drawings in which,

all

Figured is a side "elevation of an automobile driving wheel with an apparatus embodying my invention secured thereto.

Fig. 2 is a plan view of the same with an adjacent part of the automobile frame and theoperating mechanism.

' Fig. 3 is an elevation looking from the left of Fig. l, and

Fig. 4 is a disassembled view of the principal novel parts of the apparatus embodying my invention.

a is a driving wheel for an automobile and b is the tire thereof. 0 is the brake drum. The drum 0 is secured concentric to the wheel a and has anannular groove 0 between the drum and the wheel.

d is a rod bent into an elliptical form at d? and passing around the brake drum 0 at its reduced diameter which forms the inner wall of the groove 0 The shape of the part 0Z5 is such that it may have a lateral movement in an approximately horizontal direction, but is restrained from a vertical movement by contact with the wall d of v the groove 0 Thus, while the rod may reciprocateiu an approximately horizontal direction, it is retained in position because. of its, being in the groove 0 and is rex b strainedfrom movement vertically. d is a part of, the rod (Zbentinto a ll-shaped loop having parallelparts extending from the part a l of said rodQdiis a lug extending specification of Letters Patent.

the part 03 lEfElEllIi.

Patented Nov. a, tale.

a plaus as .J 'une iaiarl. s rial no. trance.

upward from the part a! of the rod 05 and al is asecond lug extending from said loop n position to be engaged by a cam as herelnafter described. a

6 1s a metal rod bent in the form of a brakeshoe at c e and having a part c in Ill-shape having parallel sides extending therefrom. The part c of the rod 6 is of approximately the same shape and length as of the rod 62. These two llshape portlons lie parallel and adjacent to g each other and are included within a guide tube it.

c is alug extending from the part c of the rod 6 and corresponding to the lug 6 1s a second lug extending from the part c and corresponding to the part d of the rod 0?.

f is a compression spring interposed between the lugs d and 6* and acting to force thebrake-shoe part 6* toward the tire h of the wheel. The lugs 01 e extend through slots in the tube 70.

j is a part of the chassis of the automobile. 9' 1s a rod extending at right angles through the side pieces j of the chassis. 9 1s a cam upon-the outer end of the rod 9 The cam piece 9 is so located that it shall engage, when pushed outward, between the lugs al and e for the purpose hereinafter descrlbed. g is a bell-crank lever having a slot g in one of its arms engaging a pin upon the rod 9 so as to reciprocate said rod. it is a connecting rod and k a pedal.

a" are chains extending between the side pieces of the part c e of the rod 6 and adapted to contact the surface of the tire Z).

The operation of the above described device is as follows:

In the ordinary operation of the machine the cam g is interposed between the lugs 03* and c thus separating said lugs and forcing the parts e e away from the tire b, as shown in Fig. 1, so that the wheel is not interfered with in its motion by the parts e and chains '5 and freeing the part 07 so that it does not rub upon the brake drum.

lln case the wheel slips, the drivers foot is 1placed upon the pedal 7L2 oscillating the be l -crank lever g and withdrawing the cam g. frombetween the lugs 01 and e as shown in Fig. 2. In this case the spring 7 forces the brake-shoe part c against the tire and the part a is carried to the dotted position shown in Fig. 1 where it is inter- When it is no longer desired to have the friction device engaged with the wheel, the cam g is interposed in the path of the'lugs d and e which lugs then engage the cam forcing the brake-shoe part e e away from the tire, as shown in Fig. 1, and. holding the device in position to be again adjusted to the Wheel when required.

What I claim is: 1. In a motor driven vehicle, the combination of a driving-wheel, a device carried .by the vehicle and adapted to be applied to' the periphery of said wheel and when so applied to prevent slipping of the wheel upon the road bed, means for automatlcally engaging 'said device with the periphery of said wheel, and means on said vehicle for disengaging said friction device from said wheel and holding the same.

2. In a motor driven vehicle, the combmation of a driving-wheel, a device carried by said wheel and adapted to be appl1ed to the periphery of the same to prevent the slipp ng of the wheel upon 'the roadbed, asprmg tending to engage said device with the periphery of said wheel, and an ad ustable device adapted to be interposed in the line of travel of a portion of the first named device to disengage the latter from the wheel so that said wheel shall revolve independent thereof.

.tion of a driving-wheel, a device carried by of the wheel to prevent slipping o 3. In a motor driven vehicle, the combinasaid wheel, a spring tending to engage said friction device with the periphery of said wheel to prevent the slipping of the wheel upon the road bed, and an ad]ustable device adapted to be interposed in the line of travel of a portion of the first named device to disengage the latter from the peripheryof the wheel, and support it in its disengaged position.

4. In a motor driven vehicle, the combination of a driving-wheel, said wheel being provided with a concentric groove, a. de-

vice engaging in said groove and having a part adapted to be applied to the tperiphery the same upon the road bed, and means for reciprocating said engaging part to engage the periphery of the wheel or to separate it therefrom.

6. In a motor driven vehicle, the combination of a driving-wheel, said wheel being provided with a concentric groove, a dev1ce engaging in said groove and having a part adapted to be applied to the periphery of the wheel to revent slipping of the same upon the road. ed, and means'for reciprocating said engaging part to engage the periphery of the wheel or to separate it therefrom, and means for supporting said fr1ct1on creating device independent of the wheel when disengaged therefrom.

7. In a motor driven vehicle, the combinat1on of a wheel, a brake drum thereon having a reduced diameter forming a groove concentrlc with said wheel, a friction creating device engaging in said groove so as to be supported by said drum and permittin independent rotation of said drum, 9. ra ially rec1procat1ng part of said friction creating device adapted to be engaged and disengaged from the periphery of the wheel, a sprmg tend ng to engage said friction producmg devlce with the periphery of the same, a lug extending from the .engagin part of said friction producing device, an a cam adapted to be interposed in the line of travel of said lug to disengage said part of the friction producing portion device from the periphery of the wheel.

8. In a motor driven vehicle, the combination of a driving-wheel, a device carried by said vehicle having a part adapted to engage the periphery of said wheel and to be disengaged therefrom, said part being adapted revolve with said wheel and prevent sllpplng of the same upon the road bed, and means for engaging and disengaging said part and the periphery of said wheel, said device being so connected with the vehicle that the wheel shall be free to-revolve independent of said device, when said part is disengaged from the periphery of said wheel. 9. In a motor driven vehicle, the combination of a dnving-wheel, a device carried by .said vehicle having a part adapted to engage the periphery of said wheel and to be disengaged therefrom, said part being adapted to revolve with said wheel and prevent slipping of the same upon the road bed, and means for'engagingand disengaging said part and the periphery of said wheel, said device being so connected with the vehicle Ill that the wheel shall be free to revolve independent of said device, when said part is disengaged from the periphery of said wheel, and means for supporting said Cl6"l(f8 when said part is disengaged.

10. In a motor driven vehicle, the combination of a wheel, a device having one part secured to said wheel concentric therewith, leaving the wheel free to turn independent thereof, a second part of said device adapted to engage the periphery of said wheel to interpose a part between said wheel and the road bed that shall prevent the slipping of the wheel upon the road bed, a spring interposed between said parts and acting to engage the second part with the periphery of the wheel, and means adapted to engage both of said parts to force them from frictional contact with said wheel.

1 1. In a motor driven vehicle, the combination of a driving-wheel, a device adapted to prevent slipping between said wheel and the road bed carried by the vehicle and adapted to be applied to the periphery of the wheel and revolve therewith, and means operable from the operators seat for engaging said device with the periphery of the wheel, said wheel being free to revolve independent of said device when the latter is not applied to the periphery thereof.

12. In a motor driven vehicle, the combination of a driving-wheel, a friction device adapted to prevent slipping between said wheel and the road bed carried by the vehicle and adapted to be applied to the periphery of the Wheel and revolve therewith, and means operable from the operators seat for engaging said device with the periphery of the wheel and disengaging it from the wheel.

In testimony whereof, ll sign this specification.

SYLVE STJER OLSZEVVSKI. 

